Band placing apparatus



Jan. 30 1951 w, H, TAYLOR ETAL 2,539,936

- BAND PLACING APPARATUS Filed April 4, 1946 4 Sheets-Sheet 1 J 1951 w.H. TAYLOR ETAL 2,539,936

BAND PLACING APPARATUS Filed April 4, 1946 4 Sheets-Sheet 2 IN V. EN T0R. /ox avy/ BY Jan. 30, 1951 w, H, TAYLOR E 2,539,936

BAND PLACING APPARATUS Jan. 30, '1951 w. H. TAYLOR ET'AL 2,539,936

BAND PLACING APPARATUS Filed April 4, 1946 Sheets-Sheet 4 IN V EN TOR.

li zi n ank J. 462761 Patented Jan. 30, 1951 TENT OFFICE.

BAND PLACING APPARATUS William H. Taylor and David S Eaton, Pawtucket,R. L, assignors to The Clark Thread Company, Inc., a corporation ofDelaware Application April 4, 1946, Serial N 0. 659,502

1 Claim.

This invention relates to a novel and improved band placing apparatus,the novel features of which will be best understood from the follow ingdescription and the annexed drawings in which we have shown .a selectedembodiment of the invention and in which:

Fig. iis a side view of an apparatus having the invention embodiedtherein;

Fig. 2 is a side view in partial section of the apparatus illustrated inFig. 1 at a different stage of operation, certain parts being omittedfor the sake ofclarity; v

isi a ieF sb t sho he r ratus at another stage of operation;

Fig. 4 is a front View, sectioned approximately along the line 4-4,ofFig. 1, of the apparatus illustrated in the forego ng figures;

Fig. 5 illustrates a banded skein of thread or yarn;

Fig. 6 is a view on an enlarged scale taken approximately on the line6-'-6 of Fig. 1, certain parts being omitted for clarity; and

Fig. 7 is a View taken approximately on the line 1-1 of Fig. 2, certainparts being omitted for clarity.

The apparatus embodying our invention, as illustrated in the presentapplication, operates in conjunction with a band forming apparatus whichis the subject of our copending application Serial No. 659,501, filedApril 4, 1946, now abandoned. Apparatus of the same general type isshown in the patent to Taylor and Kershaw No. 2,151,340 on which this isan improvement.

- In the drawings, corresponding parts in this application and in ourcopending application Serial No. 659,501, filed April 4, 1946, have beenassigned similar numerals in both cases so that the sequence ofoperations may be more easily understood. Similar parts in the variousfigures are identified by similar numerals throughout.

Referring now to the drawings, the skeins 4 may be formed of yarn orthread on a skein forming machine such as shown in the patent to Taylorand Kershaw No. 2,246,608. In such a machine, the skeins 4 areintermittently moved to various positions during the operation of themachine by a chain conveyor 5. When a skein 4 reaches the bottomposition of the conveyor, 2. pair of bands I6 and I6a are placed'on theskein while it is in this position and prior to removal of the skeinfrom the skein forming machine. These bands may be placed at each end ofthe skein as shown, for example, in Fig. 5.

The bands l6 and "Ba may be of different widths and may be formed. asmentioned. b the appa- 2 ratus described in detail in our copendingapplication Serial No. 659,501, filed April 4, 1946. In such a case, thebands are formed on the arms 52 of a turret I3 which is intermittentlyrotated to bring a band carrying arm into alignment with skein is heldin accurate alignment with the tur-;

ret arm during the initial movement of the band onto'th'e skein by apair of clamping fingers H0 which are controlled by a linkage indicatedgenerally at III. The linkage III is operated by a cam 38 which isdriven by a cam shaft 4|. This mechanism is describedin detail in PatentNo:

' As shown in Figs. 1 and 6, a pair of grippers 51a are disposed oneither side of the band IE on the open by means of a spreader bar 9|which is disposed between the arms 51. The spreader bar 9| is pivotallymounted at its ends in brackets 91 and may be rocked by a lever 92secured to one end of the bar. The lever 92 is connected by a link 93 toa cam arm 94. The cam arm 94 is pivoted to the frame at 95' and carriesa cam roller 96 intermediate its ends. The cam roller 96 engages witha'cam C on a cam shaft I03.

The cam shaft I03 is driven through gears I 00, I05, I06 and I0! fromanother cam shaft I02 which is driven by a drive shaft I00. These gearshave a 2 to 1 ratio and drive the shaft I03 at double the speed of theshaft I02.

The arms 51 carrying grippers are moved lengthwise of the turret arm andof the skein along the guide rod II2. This movement may be caused by acam D which is rotated by the shaft I02. The cam D engages with a rollerII5 on a cam arm H6 which is pivoted on the frame at H6. The cam arm II6carries at its other end a gear segment III which may be secured in adesired position by a screw H3. The gear segment I I1 engages with agear segment I I8 formed on one end of a lever II9 which is pivoted onthe frame at I20. The arm I I9 is slotted and carries a roller I2I whichmay be adjustably positioned along said arm. The roller I2I engages witha slot in a lever I22, one end of which is pivoted on the frame at I23and the other end of which is forked. The f ked end of t e lever I23greases with the gripper arms 51 through links I24 and pusher bars I25.

By adjusting the position of the roller I2I on the arm H9 andappropriate adjustment of the gear segment I H, the throw of the leverar-m I22 may be varied for any given movement of the arm H9. The cam Dand the arrangement of the levers, as illustrated, are arranged tocause-a relatively long movement of the lever arm I22 and then arelatively short movement of the lever arm I22 during each revolution ofthe cam. By this arrangement a band will be placed at each end of theskein. i

The cam roller H5 is held, in engagementwith the cam D by a tensionspring I26 which is connected to the lever arm I22 and the frame of themachine.

While the invention has been shownas embodied in a specific form ofapparatus, nevertheless it is to be understood that itmay be embodied inother forms'of apparatusand therefore, it is not intended to limit theinvention except by the appended claim.

Weclaim:

In an apparatus of the character described wherein skein-holding bandsare placed at spaced points ona skein supported in a banding positionin. a skein-forming, machine, the combination which includes a pair ofband gripping fingers, said band-gripping fingers being reciprocablebetween a band-engaging position and a plurality of band-placingpositions,.a double-acthig cam for actuating said fingers, said camhaving a surface other lever, the position of said roller determiningthe distances said'gripping fingers are moved by said linkage inreciprocation between the band-engagingposition and the first and secondband-placing positions.

WILLIAM H. TAYLOR. DAVID S. EATON.

4 REFERENCES crrEn v I The followingreferences are of record in the fileof this patent: 4 V

UNITED STATES PATENTS Number Name Date 4 ,1

819,269 Fenn May 1, 1906 1,724,047 Schramm Aug. 13,1929 2,151,340 ITaylor et al. Mar. 21, 1939 FOREIGN PATENTS mber. Co t y Da 102,624Austria Feb. 25, 1926

